A Hocking County judge Monday heard arguments on whether to grant a new trial for a man convicted of killing his estranged wife last year. William Inman II was convicted last month in the death of 25-year-old Summer Inman. His attorneys say a witness' criminal background was not disclosed before he testified at trial. They say the new information tarnishes the credibility of the witness. Inman's mother Sandra pleaded guilty last month to murder and other charges, and was was sentenced to 15 years to life in prison. Sandra Inman's husband also is charged in the case.